Best Multilayer Pcb Board

4X Prototype PCB for Arduino Mega 2560 R3 Shield Board DIY

Prototype PCB for Arduino Mega 2560 R3 Shield Board DIY..
PCB Dimension: 101.6mm x 53.34mm / 4" x 2.1".
PCB Thickness: 1.6mm / 0.063", Material: high quality FR-4 glass fiber PCB..
All holes are plated through. Top and bottom side are identical copper layers. Pads grid (pitch) 2.54mm / 0.1", hole diameter 0.9mm..

Directly printing inductor traces on the PCB board greatly simplifies the difficulty of assembly..
The kit uses a band-pass filter, 3355 high-amplifier, NE602 mixing, MC1350 mid-amplifier solution, which can receive AM signals of 118-136MHz..
12V power supply, 9.2 x 7.5cm PCB board size, which can be directly used in 97 x 40 x 75mm aluminum chassis.
The AGC circuit on the board ensures comfortable listening, while the squelch function avoids long-term noise..
It is specially used to receive the call between the aircraft and the tower. With the antenna with good performance (VHF band Yagi antenna), the open area can receive various types of aircraft and tower calls within about 190Km. Please pay attention to your favorite friends..

As the carrier of the IC chip, the IC connector can replace the chip and PCB board for repeated welding and disassembly without damaging the chip, achieving the effect of saving IC cost and time.
When installing,first solder the chip to the IC connector, and then solder the IC connector to the PCB board.
when you need to install or replace the chip, directly remove the connection between the IC connector and the PCB board, without changing the chip and connector Connection..
Advantages-IC connector has strong vibration and heat resistance, can withstand repeated welding and disassembly, convenient installation, and easy to use.
Noted - The spacing and line spacing of the connector holes must be the same as the spacing and line spacing of the chip pins.

High Quality : The amplifier board adopts TDA7492P power amplifier chip, high quality electronic components and military grade PCB board, durable in use..
2 Channel : This board is designed with dual channel output, 25W left channel and 25W right channel, high transmission rate and good sound quality..
Bluetooth Connection : The amplifier board is designed with Bluetooth V2.1 module and power supply reverse connection protection, convenient and safe to use..
Application : This digital amplifier board is suitable for upgrading and refitting the idle sound box and DIY production. It is suitable for speaker of 4Ω, 6Ω, 8Ω, 16Ω (8Ω is the best)..

【Product Function】 Using this product can eliminate the cavity sound of the keyboard, increase the thickness of the tone, and reduce the resonance....
【Easy Installation 】Install directly between PCB and steel plate without adhesive. And will not affect the light position of the keyboard..
【Material】Made of soft sponge material, with high-efficiency noise reduction effect, and will not damage your PCB board..
【3mm Thickness】Because the distance between the PCB and the positioning board is between 3mm and 3.5mm, this 3mm silencer pad is the best choice....
【Warm Tips】This silencer pad is drawn based on the actual measurement of the keyboard. It is not manufactured by the original factory and cannot....

Row to Row Distance(Approx):15.24mm/ 0.6".
As the carrier of the IC chip, the IC connector can replace the chip and PCB board for repeated welding and disassembly without damaging the chip, achieving the effect of saving IC cost and time.
When installing,first solder the chip to the IC connector, and then solder the IC connector to the PCB board.
when you need to install or replace the chip, directly remove the connection between the IC connector and the PCB board, without changing the chip and connector Connection..
Advantages-IC connector has strong vibration and heat resistance, can withstand repeated welding and disassembly, convenient installation, and easy to use.
Noted - The spacing and line spacing of the connector holes must be the same as the spacing and line spacing of the chip pins.

As the carrier of the IC chip, the IC connector can replace the chip and PCB board for repeated welding and disassembly without damaging the chip, achieving the effect of saving IC cost and time.
When installing,first solder the chip to the IC connector, and then solder the IC connector to the PCB board.
when you need to install or replace the chip, directly remove the connection between the IC connector and the PCB board, without changing the chip and connector Connection..
Advantages-IC connector has strong vibration and heat resistance, can withstand repeated welding and disassembly, convenient installation, and easy to use.
Noted - The spacing and line spacing of the connector holes must be the same as the spacing and line spacing of the chip pins.

This PCB Drill Bit Set contains 10 different size drill bits diameter: 0.3mm, 0.4mm, 0.5mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1mm, 1.2mm. And each size have 5 pcs. Varies sizes to meet different needs..
This micro drill bits are designed to drill and engrave on print circuit board and other precise work. The PCB Drill Bits are made of high quality tungsten steel, highly wear resistance, high hardness, bending strength, anti-impairment, highly working efficiency. Seismic design on the blade edge enables it to stay stable during engraving..
PCB Drill Bits Set are great for punching at printed circuit boards, 3D Printer Nozzle Cleaning, CNC engraving plexiglass, Amber beeswax, bakelite, jewelery, metal plastic and other precision drilling.
cutting and engraving and worked on Acrylic, PVC, Nylon, Resin, Fiberglass,etc..
PCB Drill Bit With sharp cutting edge, milling groove and clean surface, these sets of tool work quickly and cleanly, no glitches or scrap left. Package with high quality plastic box, easy carry and better protection keeps the blade tip goods in the delivery from being damaged..
180 Days warranty. If you are not satisfied with our products,feel free to contact us for a replacement or refund. The PCB Drill Bits may also know as micro d....